How to make spoilers?
Use the second button after selecting your text, it will add a special [ fliptext ] tag around it, and the text will be like this : click me to flip, if you want flipped text by default and make text readable by click, reserse it between tag : ʇlnɐɟǝp ʎq pǝddılɟ sı ʇxǝʇ sıɥʇ
Each [ fliptext ] tag is replaced by a <span> tag with a css class named fliptext, you can add style as you want, like it’s done in these examples

Feel free to give feedbacks or improvements about the plugin.

If you find it useful, well coded, or you just want to thank me for the work, you can donate, thank you!